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Saul
Joined: 31 Jan 2011
Posts: 1509
Location: Naperville, IL USA
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 Posted: Sun Mar 19, 2017 7:41 pm Post subject: |
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| rjlittlefield wrote: | | I had forgotten this thread, and I see that one of your earlier questions went unanswered. |
Thanks Rik ! Looks like bottom line is - balance between vignetting and aberrations.
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Saul
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microman
Joined: 14 Jan 2017
Posts: 122
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| Posted: Mon Mar 20, 2017 7:25 am Post subject: |
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| Interesting setups, thanks for sharing. |
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Saul
Joined: 31 Jan 2011
Posts: 1509
Location: Naperville, IL USA
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| Posted: Fri Jul 28, 2017 12:50 pm Post subject: |
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| rjlittlefield wrote: | | ... If the distance is too short, the system may experience aberrations... |
Thanks Rik, sorry for the late reply !
So, only way to check aberrations - make tests at the different distances between objective and tube lens ?
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Saul
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Saul
Joined: 31 Jan 2011
Posts: 1509
Location: Naperville, IL USA
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| Posted: Wed Dec 06, 2017 6:54 pm Post subject: |
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Small improvement to my Labophot stacking base - I got it without the light, had to use Jansjo through the back opening. Few cheap ebay parts - 10W led 272389345999 , heatsink 182195476144 & LED dimmer 282671724717 - now I have a comfort adjusting background brightness
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Saul
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Smokedaddy
Joined: 07 Oct 2006
Posts: 1539
Location: Phoenix, Arizona
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| Posted: Wed Dec 06, 2017 7:36 pm Post subject: |
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| Sweet setup Saul. |
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Saul
Joined: 31 Jan 2011
Posts: 1509
Location: Naperville, IL USA
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| Posted: Wed Dec 06, 2017 7:48 pm Post subject: |
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| Smokedaddy wrote: | | Sweet setup Saul. |
Thanks James, it keeps my blood pressure lower 
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Saul
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ChrisR
Site Admin
Joined: 14 Mar 2009
Posts: 8462
Location: Near London, UK
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| Posted: Thu Dec 07, 2017 7:35 am Post subject: |
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Are you happy with the spectrum of the LED?
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Chris R |
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Saul
Joined: 31 Jan 2011
Posts: 1509
Location: Naperville, IL USA
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| Posted: Thu Dec 07, 2017 7:56 am Post subject: |
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| ChrisR wrote: | | Are you happy with the spectrum of the LED? |
Did not try yet, fresh update . Should I look for the better CRI ? It is just for the background illumination ...
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Saul
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Saul
Joined: 31 Jan 2011
Posts: 1509
Location: Naperville, IL USA
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| Posted: Thu Feb 15, 2018 3:29 pm Post subject: |
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Got a new toy !
...and time for improvements:
Beta 3D printed dovetail adapter to the M42 extension ring
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Saul
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ChrisR
Site Admin
Joined: 14 Mar 2009
Posts: 8462
Location: Near London, UK
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| Posted: Thu Feb 15, 2018 3:45 pm Post subject: |
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I was thinking of doing the same, but getting it machined. 
Is the thread itself 3D-printable?
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Chris R |
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Saul
Joined: 31 Jan 2011
Posts: 1509
Location: Naperville, IL USA
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| Posted: Thu Feb 15, 2018 3:57 pm Post subject: |
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| ChrisR wrote: | I was thinking of doing the same, but getting it machined.
Is the thread itself 3D-printable? |
With my colleague's 3D printer - no
And even with the great printer I wouldn't do it - to press in+ glue M42 extension ring is cheaper/faster solution.
Machining - later option (if needed), after all beta testing
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Saul
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Smokedaddy
Joined: 07 Oct 2006
Posts: 1539
Location: Phoenix, Arizona
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| Posted: Thu Feb 15, 2018 6:01 pm Post subject: |
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| ... just my opinion, I wouldn't expect great results with M42x1 threads with any FDM printer. For that sort of thing you would need something like the Ember SLA/DLP resin printer (only about $8,000 plus the expensive resins). <g> Like Saul said simply gluing that puppy on is super simple. |
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Saul
Joined: 31 Jan 2011
Posts: 1509
Location: Naperville, IL USA
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| Posted: Fri Feb 16, 2018 11:20 pm Post subject: |
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OK, next step - to attach to the my existing setup
With 3D printed dovetail adapter for the tube lens/infinity objective
...and the turret version. I can use this setup with infinity objective also by placing back Reichert tube lens to the trinocular head
It is little bit overkill to have two focus assemblies in one setup....
Most probably it will be useful to use Double Flange Long High-Cycle Linear Bearing with Brake Holes instead aluminum back plate for the Optiphot focus block - something similar to https://8020.net/shop/6536.html in order to have lower profile than my previous sliding head+focus block combination.
Previous version:
BTW, my Labophot base stage does not have slide holder, so there is 3D printed solution:
Now it is much more easier to place different diffusers, screens, scrims, etc.
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Saul
Studio, horizontal and field setups
Last edited by Saul on Fri Feb 16, 2018 11:26 pm; edited 1 time in total |
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Smokedaddy
Joined: 07 Oct 2006
Posts: 1539
Location: Phoenix, Arizona
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| Posted: Fri Feb 16, 2018 11:24 pm Post subject: |
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| Sweet Saul. |
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Saul
Joined: 31 Jan 2011
Posts: 1509
Location: Naperville, IL USA
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| Posted: Fri Feb 16, 2018 11:29 pm Post subject: |
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| Smokedaddy wrote: | | Sweet Saul. |
Thanks, James, it is like obsession ... not only for me, right ?
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Saul
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